Ftjenace



C. J. WESTMAN. DUST SHIELD FO BEARINGS. f vMPucmlou min mns. Isis.`

1,302,614;` Patyendmy 6, 11919. u

UNITED sTATEs PATENT oEEroE.

CARL JOHAN WESTMAN, F STOCKHOLM, SWEDEN, ASSIGNOR TO AKTIEBOLAG-ET ZEUS, 0F STOCKHOLM, SWEDEN, A QQRCBORATIO'N OF SWEDEN.

DUST-SHIELD FOR BEARINGS.

Application filed April 9, 1918.

To all 'whom 'it may concern:

Be it known that I, CARL JOHAN WEST- MAN, a. subject of the King of Sweden and resident of Handtverkaregatan 43A, Stoel@ holm, in the Kingdom of Sweden, have in vented certain new and useful Improvements in Dust-Shields for Bearings, of

which the following is a specification, reference being had therein to the, accompanying drawing.

This invention relates to Vimprovements in dislcshaped dust Shield for ball-bearings, roller-bearings and other bearings, of that class, which are mounted on the ends of the inner ring or the outer ring or on the frame of the bearing.

Figures 1 and 2 in the accompanying drawing show in a cross section and in a side view respectively a dust shield arranged in accordance with this invention. Figs. 3 and 4 show in a longitudinal section and in a side view respectively a ball-bearing provided with dust shields arranged in accordance with the invention.

The ring shaped dust shield 1 shown in the drawing is comparatively thin and made of metal or any other suitable rigid material. According to the draWinU the inner diameter of the ring is adapted to the inner ring 2 of the bearing, so that the shield can e1nbrace the said ring 2 and lits as closely as possible to the same. The outer edge of the shield l is beveled and adapted to be broughtinto engagement with a correspondingly shaped groove 3 provided in the outer ring t of the bearing the depth of which groove increases toward the center plane of the outer ring 4. In-order to render it possible to introduce the shield into the groove 3 a number (four in the drawing) ot notches 5 are provided in the inner edge of' the ring 4, preferably at the same distance from one another, which notches extend to the groove 3. In the outer edge ofthe shield 1 snbstan tially radial slots 6 are provided, corresponding to the notches 5. rIhe points of the adjacent corners 7 formed by the said slots 6 are somewhat bent in opposite directions, so that the shield has substantially the shape of a ground-anger.

For the mounting of the shield into the outer Vring 4 of the bearing the ring l is Speci-cation of Letters Patent.

Patented May 6., 1919.

serieu No. 227,583.

located with one of its sides against the ring 4 and with the slots 6 located at the side of the notches 5, the shield 1 beingr then rotated by means of a pin Spanner, en-

gaging. holes 8 provided in the ring l, in y the same, t e shield 1 is rotated in opposite direction, so that the points of the other set of corners 7 engage the opposite edges of the notches 5 provided in the ring 4 and the shield l is screwed out of engagement with the slot 3 of the ring 5. In order to Vfacilitate the engagement of the corners 7 with the edges of the notches 5, the said edges are beveled at the inner and outer sides respectively. In the drawing ringshaped dust shields are provided at both sides of the ball-bearing. It' the inner ring of the bearing is not adjustable transversely or is not able to swing laterally as the ring 2 of the bearing shown in the drawing, the inner ring may be provided with grooves adapted to receive the ring-shaped dust shields respectively, or both rings of the bea-ring may be provided with slots for the said urpose.

The ring-shaped dust shields escribe'l above may be used in ballbearings of any type and in roller bearings and in bearings generally. In some cases a disk arranged in the same manner as the ring may be substituted for the same. The dust shield may evidently be lixed to the frame of a bearing arranged in accordance with the ring 4. If the shield 1 is sufiiciently thin, the edge of the same need not be beveled.

I I` ving now described my invention, what I clan as newand desire to secure by Letters Patent is:

1. In a ball-bearing, roller-bearing or bearing of any other type, the combination of a disk-shaped dust shield provided in its edge with substantially radial slots, the corners at the said slots being bent laterally, a

rection, that the points of one set peripheral groove provided in the bearing, and notches extending from the bearing to the said groove, substantially aS described and for the purpose set forth.

2. In a ball-bearing, roller-bearing or bearing of any other type, the combination of a ring-shaped dust shield provided in one of its edges With substantially radial slots, adjacent corners at the said slots being bent laterally in opposite directions, a peripheral 10 In Witness whereof I have hereunto signed 15 CARL JOHAN WESTMAN.

Copiel of this patent may be obtained for five cents each, by addressing the "Commissioner of Patenti. Washington, D. (2. 

